devoir 2 S01 : suites et produit scalaire - v2

📅 February 08, 2024   |   👁️ Views: 382



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maths Exam for 1-bac-science PDF preview

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\begin{center}
    \begin{tabularx}{\linewidth}{@{}|Y|Y|Y|@{}}
        \hline
        Lycée Taghzirte& Control N° 2 : 1BACSF1 & Année scolaire: 2022-2023\\
        Prof: MOSAID Radouan& Semestre 1& Durée: 2h\\
        \hline
    \end{tabularx}
    \begin{tabularx}{\linewidth}{@{}|c|X|@{}}
        \hline
        & \underline{\textbf{Exercice 1:}(7pts)} \\
        & Soit la suite numérique $(U_n)$ définie par
        $
        \begin{cases}
            U_0 = 1 \\
            U_{n+1} = \frac{U_n}{1+3U_n} \hspace*{0.5cm} \forall n \in \mathbb{N}
        \end{cases}
        $ \\
        1 & \hspace*{0.5cm}1 -  calculer $U_1$, $U_2$\\
        2 & \hspace*{0.5cm}2 -  Montrer par récurrence que $\forall n \in \mathbb{N} \hspace*{0.3cm} 0 \le U_n \le 1 $\\
        1 & \hspace*{0.5cm}3 -  Montrer que  $(U_n)$,est décroissante\\
        & Soit la suite $(V_n)$ définie par $V_n=\frac{1}{U_n}$\\
        1 & \hspace*{0.5cm}4 -  Montrer que  $(V_n)$,est arithmétique\\
        2 & \hspace*{0.5cm}5 -  Ecrir $V_n$ puis $U_n$ en fonction de n \\
        & \underline{\textbf{Exercice 2:}(7pts)} \\
        & Le plan est rapporté à un repère orthonormé $(O,\overrightarrow{i},\overrightarrow{j})$. Soient les points $A(-1,-3), B(2,1)$ et $C(6,-2)$\\
        2 & \hspace*{0.5cm}1 - calculer $\overrightarrow{AB}.\overrightarrow{AC}$ et $det(\overrightarrow{AB},\overrightarrow{AC})$\\
        3 & \hspace*{0.5cm}2 - calculer $cos(\overline{\overrightarrow{AB},\overrightarrow{AC}})$;  et $sin(\overline{\overrightarrow{AB},\overrightarrow{AC}})$. En déduir la mesure de l'angle $(\overline{\overrightarrow{AB},\overrightarrow{AC}})$ \\
        2 & \hspace*{0.5cm}4 - Soit $D: 6x+8y+5=0$ une droite. calculer $d(C,(D))$\\
        & \underline{\textbf{Exercice 3:}(6pts)} \\
        & Soit $(C)$ l'ensemble des points $M(x,y)$ tels que $x^2+y^2+4x-2y=0$\\
        2 & \hspace*{0.5cm}1 - Montrer que $(C)$ est un cercle et determiner ses elements caractéristiques\\
        1 & \hspace*{0.5cm}2 - Verifier que le point $A(-1,-1)$ appartient à $(C)$ \\
        2 & \hspace*{0.5cm}3 - Determiner une équation cartésienne de la droite $(D)$ tangente au cercle $(C)$ au point A\\
        1 & \hspace*{0.5cm}4 - Etudier les positions relatives de la droite $(D)$ et la droite $\Delta: 2x+y-1=0$\\
        \hline
    \end{tabularx}
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Frequently Asked Questions

What chapters or courses does this exam cover?
This exam covers: الجداء السلمي وتطبيقاته, Les Suites numériques v4, المتتاليات العددية, Les Suites numériques v3, Les Suites numériques v2, Les Suites numériques. It is designed to test understanding of these topics.

How many questions are in this exam?
The exam contains approximately several questions.

Is this exam aligned with the official curriculum?
Yes, it follows the 1-bac-science maths guidelines.

What topics are covered in this course?
The course "Produit Scalaire" covers key concepts of maths for 1-bac-science. Designed to help students master the curriculum.

Is this course suitable for beginners?
Yes, the material is structured to be accessible while providing depth for advanced learners.

Are there exercises or practice problems?
Exercises are included to help you practice.

Does this course include solutions?
Solutions are available separately.


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